JF
John Fischer — 1930 US Census Record
Model Tree available1930 United States Federal Census · Polk, Iowa
Our Model Tree links this John Fischer across the 1910, 1920 and 1930 US Censuses in Polk, Iowa (XGBoost, ~Confirmed), with identified parents Alfreda & J — first a son (b.~1906), then head of a 4-person household.
Age 24
b. ~1906
Male
Son
Born: Minnesota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Fischer |
| Given Name | John F. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Norway |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1906 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Fischer | Head | — | 51 | ~1879 |
| Kenneth Baker | Other | — | 14 | ~1916 |
| John Fischer | Son | — | 24 | ~1906 |
| Alfreda Fischer | Spouse | — | 45 | ~1885 |
Census Appearances
1910
Polk, Iowa
Son, age 4
Polk, Iowa · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fisher |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Norway |
| Speaks English | English |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
Son, age 14
Polk, Iowa · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fisher |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Polk, Iowa
Son, age 24
Polk, Iowa · implied b. ~1906 — 4 household members
| Surname | Fischer |
| Given Name | John F. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Fischer across 3 US Census years (1910, 1920 and 1930) in Polk, Iowa, using XGBoost record linkage. Identified parents: mother Alfreda Fisher (~0.92 confidence) and father J Fisher (~0.92 confidence) and father J Fisher (~0.92 confidence) and father John Fischer (~0.92 confidence) and mother Alfredia Fisher (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Alfreda Fisher
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
J Fisher
b. ~1878
Source father
● Household
· direct · ~0.92
Father
J Fisher
b. ~1878
Source father
● Household
· direct · ~0.92
Father
John Fischer
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Alfredia Fisher
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Fischer
Son · 1930 · age 24 · b. ~1906 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel677:0416)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Richard Heck | 40 | Head | Engineer | Tennessee |
| 52 | Anna Heck | 33 | Wife | Waitress | Tennessee |
| 53 | Helen Heck | 16 | Daughter | — | Iowa |
| 54 | Leslie Heck | 12 | Daughter | — | Iowa |
| 55 | Richard Heck | 11 | Son | — | Iowa |
| 56 | Kenneth Heck | 8 | Son | — | Iowa |
| 57 | Leland Heck | 6 | Son | — | Iowa |
| 58 | Geo. Baskett | 29 | Brother-in-law | Miner | Tennessee |
| 59 | Edith Clevenger | 17 | Sister-in-law | — | Tennessee |
| 60 | John F. Fischer | 51 | Head | Salesman | Iowa |
| 61 | Alfreda Fischer | 45 | Wife | Manager | Norway |
| 62 | John F. Jr. Fischer THIS PERSON | 24 | Son | — | Minnesota |
| 63 | Kenneth Baker | 14 | Nephew | — | Minnesota |
| 64 | — | None | — | — | — |
| 65 | — | None | — | — | — |
| 66 | — | None | — | — | — |
| 67 | — | None | — | — | — |
| 68 | — | None | — | — | — |
| 69 | — | None | — | — | — |
| 70 | — | None | — | — | — |
| 71 | — | None | — | — | — |
| 72 | — | None | — | — | — |
| 73 | — | None | — | — | — |
| 74 | — | None | — | — | — |
| 75 | — | None | — | — | — |
| 76 | — | None | — | — | — |
| 77 | — | None | — | — | — |
| 78 | — | None | — | — | — |
| 79 | — | None | — | — | — |
| 80 | — | None | — | — | — |
| 81 | — | None | — | — | — |
| 82 | — | None | — | — | — |
| 83 | — | None | — | — | — |
| 84 | — | None | — | — | — |
| 85 | — | None | — | — | — |
| 86 | — | None | — | — | — |
| 87 | — | None | — | — | — |
| 88 | — | None | — | — | — |
| 89 | — | None | — | — | — |
| 90 | — | None | — | — | — |
| 91 | — | None | — | — | — |
| 92 | — | None | — | — | — |
| 93 | — | None | — | — | — |
| 94 | — | None | — | — | — |
| 95 | — | None | — | — | — |
| 96 | — | None | — | — | — |
| 97 | — | None | — | — | — |
| 98 | — | None | — | — | — |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
Related Census Records
Pedigree Summary
John
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)